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Gnesinka [82]
3 years ago
14

What is the answer I am CONFUSED

Mathematics
2 answers:
NemiM [27]3 years ago
7 0

Answer:

-6m-n-3

Step-by-step explanation:

Jus

t add then divide then multiply then subtract then u get your answer

earnstyle [38]3 years ago
5 0

Answer:

C.

Step-by-step explanation: Its negative and substracting at the end

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Plz help me answer this
timofeeve [1]

Answer:

(-2, -8)

x = -2

y = -8

General Formulas and Concepts:

<u>Pre-Algebra</u>

  • Order of Operations: BPEMDAS
  • Equality Properties

<u>Algebra I</u>

  • Solving systems of equations using substitution/elimination

Step-by-step explanation:

<u>Step 1: Define systems</u>

13x - 6y = 22

x = y + 6

<u>Step 2: Solve for </u><em><u>y</u></em>

<em>Substitution</em>

  1. Substitute in <em>x</em>:                              13(y + 6) - 6y = 22
  2. Distribute 13:                                 13y + 78 - 6y = 22
  3. Combine like terms:                      7y + 78 = 22
  4. Isolate <em>y</em> term:                                7y = -56
  5. Isolate <em>y</em>:                                         y = -8

<u>Step 3: Solve for </u><em><u>x</u></em>

  1. Define original equation:                    x = y + 6
  2. Substitute in <em>y</em>:                                     x = -8 + 6
  3. Add:                                                      x = -2
4 0
3 years ago
write an equation for the line that passes through the given point and has the given slope m (4,-5);m= -1/4
EastWind [94]

-------------------------------------------------------------------------------------------------------------

Answer:  \textsf{y = -1/4x - 4}

-------------------------------------------------------------------------------------------------------------

Given: \textsf{Slope = -1/4, Point through = (4, -5)}

Find:  \textsf{Equation for the line that passes through the given point}

Solution: In order to get the equation, we need to first use the point-slope form to help us sort out our information and then we solve for y.

<u>Plug in the values</u>

  • \textsf{y - y}_1\textsf{ = m(x - x}_1\textsf{)}
  • \textsf{y - (-5) = -1/4(x - 4)}

<u>Simplify and solve for y</u>

  • \textsf{y + 5 = -1/4(x - 4)}
  • \textsf{y + 5 = -1/4x + 1}
  • \textsf{y + 5 - 5 = -1/4x + 1 - 5}
  • \textsf{y = -1/4x - 4}

Therefore, the final answer would be that the equation that has a slope of -1/4 and passes through (4, -5) is y = -1/4x - 4.

5 0
2 years ago
How many lines of symetry do a heart have
Deffense [45]

Answer:

1

Step-by-step explanation:

You can only cut it in half (vertically)

7 0
2 years ago
g Suppose we want to know what proportion p of students in a large university have studied calculus in high school. At least how
Soloha48 [4]

Answer:

1067

Step-by-step explanation:

Given that:

Error (E) = 0.03

Confidence interval = 95% = 0.95

Sample size (n) = ((Zα/2) / Error)^2 * p(1 - p)

Since no assumption is given ; p = 0.5

α = 0.95

Z(1-α/2) = 1.96

(1.96 / 0.03)^2 * 0.5(1 - 0.5)

(65.333333)^2 * 0.5(0.5)

4268.4444 * 0.25

= 1067.1111

n = 1067

3 0
2 years ago
I’m not sure how to write this equation. Please check the picture to see the graph for yourself! Help will be much appreciated!
Makovka662 [10]

let's notice something, the parabola is a vertical one, so the squared variable is the x, and is opening downwards, meaning the x² will have a negative coefficient.

the distance from the vertex to the directrix/focus is the amount of "p" units, let's see in the graph, the distance from the vertex to the directrix is 2, and since the parabola is opening downwards, "p" is a negative 2, p = -2.  The vertex is of course at (0, 2).


\bf \textit{parabola vertex form with focus point distance}&#10;\\\\&#10;4p(y- k)=(x- h)^2&#10;\qquad&#10;\begin{array}{llll}&#10;vertex\ ( h, k)\\\\  p=\textit{distance from vertex to }\\&#10;\qquad \textit{ focus or directrix}&#10;\end{array}&#10;\\\\[-0.35em]&#10;\rule{34em}{0.25pt}\\\\&#10;\begin{cases}&#10;h=0\\&#10;k=2\\&#10;p=-2&#10;\end{cases}\implies 4(-2)(y-2)=(x-0)^2\implies -8(y-2)=x^2&#10;\\\\\\&#10;y-2=\cfrac{x^2}{-8}\implies \blacktriangleright y=-\cfrac{1}{8}x^2+2 \blacktriangleleft

8 0
2 years ago
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